Unhelpful means doing nothing to make things easier. An unhelpful reply, unhelpful attitude, frankly unhelpful.
It is a British understatement of some force, since calling a response unhelpful is a good deal ruder than it sounds. It marks something as making the situation worse rather than merely not better.
1adjectiveunhelpfulDoing nothing to make things easier.
“The staff at the station were rude and unhelpful when we asked about the delay.”
unhelpful is a quality.
Middle English
helpful
English
helpful
English, today
unhelpful
From un- + helpful. helpful comes from Middle English helpful; equivalent to help + ful.
Etymology from Wiktionary, CC BY-SA